50 Pence KM#991 8.00 g., Copper-Nickel, 27.3 mm. Ruler: Elizabeth II Obv: Fourth crowned portrait of HM Queen Elizabeth II facing right, wearing the Girls of Great Britain and Ireland tiara, legend ELIZABETH·II·D·G REG·F·D·2001 around Rev: Seated figure of Britannia facing right with shield, spear and lion, with denomination in letters above and numerals below Shape: 7-sided Edge: Plain